Feeler mechanism for looms



Feb. 18, 1930.; w SIMPSON 1,747,997

7 FEELER MECHANISM FOR LOOMS Filed May 14, 1929 MWRW ATTORNEY PatentedFeb. 18, 1930 1 UNITED STATES PATENT OFFICE JESSE W. SIMPSON, OFANDERSON, SOUTH CAROLINA, ASSIGNOR TO DRAPER CORPORA- TION, OFI-IOPEDALE, MASSACHUSETTS, A CORPORATION OF MAINE FEELER MECHANISM nonLOOMS Application filed May 14, 1929. Serial No. 362,918.

This invention relates to feeler mechanisms for looms whereby theoperative condition of the loom is changed when the'filling becomessubstantially exhausted'in the active shuttle, and is more particularlydirected to feeler mechanisms of the side slipping ype. In'the sideslipping type of feeler mechanism the feeler is caused to move in adirection longitudinally of the shuttle when the filling issubstantially exhausted on a detecting beat and such movement may beeffected either by the frontward pressure of a surface within theshuttle, or by means which acts upon the feeler independently of thefrontward pressure to cause its side slipping movement. I

The amount of waste that remains upon the carrier or bobbin when it isejected from to the feeler its rearward movement and lateral movementinto feeling position and upon frontward movement of the feeler on adetecting beat, to exert a stress tending to move the feeler in adirection longitudinally of the shuttle. t More specifically, theinvention provides a pivotally mounted feeler carrier with relationtowhich the feeler may be moved longitudinally .on each detecting beat,and connected to the feeler is a spring which acts upon the feeler at apoint back of the pivotal mounting of the feeler carrier when the feeleris in rearward position and in, front of the pivotalmounting of thefeeler carrier when the feeler is-moved frontwardly on a detecting beat.a

r The invention and novel features thereof will best be made clear fromthe following vdescription and drawings of one good practical formthereof.v I

. In the drawings v Fig. 1 is a plan view showing a feeler mechanismcontaining the present invention;

' Fig. 2 is a similar view showing the relation of parts when the feeleris displaced frontwardly on the feeler carrier by a working supply offilling in the shuttle, and

Fig. 3 is a similar view showing the feeler as detecting substantialexhaustion of filling in the shuttle and the relation of parts at thistime.

The invention has special advantagein a filling replenishment loom, butthe replenishing mechanism and its details are not herein shown anddescribed because they are now common in the art, and well understood.

In the illustrated embodiment of the invention, a feeler stand 1 isprovided which may be secured to the front part of the loom as usual bymeans of a bolt 2 passing through an opening 3 in the feeler stand.

Pivotally mounted upon the feeler stand at 4 is the feeler carrier 5having a front bearing 6 and a rear bearing 7 through which extends thefeeler 8 and with reference to which the feeler may have movementtowards and from the front of the loom on detecting beats.

In the present instance of the invention, and with due regard to thedelicacy desired for a feeler mechanism, thefeeler is formed of wire andis mounted on the pivotal feeler carrier to extend backwardly intofeeling position atsubstantially right angles to the direction of laymovement. The rear end portion of the feeler is provided with a fillingfeeler tooth 9 which is preferably formed by cutting the wire feeler ina diagonal direction through the entire dimensions of the feeler. So faras certain aspects of the present invention are concerned, however, thefilling engaging end of the feeler may be otherwise formed.

In accordancewith the present invention end of the spring beingconnected to the feeler between the front and rear bearings of thefeeler carrier.

As one convenient means for securing the front end portion of the spring12 to the feeler the latter is provided with a projection or bend 13between the front and rear bearings of the feeler carrier and the end Mof the spring is secured to such bend as shown.

From the construction thus far described it will be apparent that thespring 12 will act upon the feeler back of the pivotal connection of thefeeler carrier with the feeler stand when the feeler is in its rearwardfeeling position, as indicated in 1. I/Vhen, however, the feeler ismoved frontwardly by a working supply of fillingon a detecting beat thespring 12 will be elongated as its front connection with the feeler ismoved towards the front of the loom and frontward of the pivotalconnection 4 of the feeler carrier with the feeler stand. with theresult that at this time, as indicated in Fig. 2, the spring 12 actingupon the feeler in a rearwardly inclined direction will tend to impartto the feeler carrier a tendency to swing about its pivotal mounting.but, owning to the engagement of the toothed end of the feelerrwith theworking supply of filling, the feeler carrier will be held from turningmovement upon its pivotal support, notwithstanding the fact that thespring action at this time is frontward of such pivotal mounting.

When the filling has become substantially exhausted on a detecting beat,and the feeler is moved frontwardly by the'oncominglay, the parts willtake the position indicated in Fig. 3, wherein the line of action of thespring laterally and rearwardly is in front of the pivotal support ofthe feeler carrier, thereby exerting through the feeler a turningmovement of the feeler carrier and side slipping movement to the feeleritself.

The turning movement of the feeler carrier as indicated in Fig. 3 isutilized to initiate replenishment of filling and to this end the feelercarrier has connectedthereto at p 15 the transmitter 16 which will bemoved longitudinally by the feeler carrier when the spring action uponthe feeler frontward of the pivotal support of the carrier turns thelatter to efiect s ide. slipping movement of the feeler.

The feeler stand 1 has a stop 17 at its front portion which is engagedby a complemental stop 18 formed on the feeler carrier when the latteris in its normal position as indicated in Fig. 2, therebylimiting theswinging 1novement of the feeler carrier when the action of i the spring12 is exerted on the feeler rearward of the pivotal support 4 of thefeeler carrier.

In order to limit the swinging movement of the feeler carrier to callfor a change of filling another stop 19is formed on the feeler stand andis adapted to be engaged by a complemental stop, 20 at the rear part ofthe, feeler carrier, as indicated in Fig. 3, to thereby limittheswingingmovement of the feeler carrier by the spring 12 whenit acts upon thefeeler frontward of the pivotal support 4 of the feeler carrier, andfilling is substan V the feeler tends to impart turning movement to thefeeler carrier to effect side slipping movement of the feeler when thefilling is substantially exhausted on a detectingbeat.

In Fig. 2the filling carrier or bobbin 21 is indicated as provided witha working supply of filling 22, while in Fig. 3, the filling carrier orbobbin 21 has had the filling sub stantially exhausted therefrom.

What is claimed is v I I 1. In a feeler mechanism for looms, thecombination of apivotally mounted feeler carrier, a feeler mountedon thepivoted carrier for longitudinal movement relative thereto, a springhaving one end secured at the rear of the feeler stand and its other endconnected to the feeler at a point which is back of the carrier pivotwhen the feeler v in rearward feeling position tothereby turn. thecarrier and'feelerin one direction and in front of the carrier pivotwhen'the feeler is moved frontwardly on a detecting beat to therebyexert a tendency for the feeler car rier and feeler to turn in anopposite direction. I 2. In a feelermechanism for looms, the combinationof a pivotally mounted feeler carrier, a feeler mounted on the feelercan rier for longitudinal movement, a spring acting upon the feeler in arearwardly inclined direction back of the pivotal mountingof the feelercarrier when the feeler is in rearward feeling position and in front ofthe pivotal mounting of the feeler carrier when the feeler is movedfrontwardly on a detecting beat.

3. In a feelermechanism for looms, the combination of a pivotallymounted feeler carrier, a feeler mounted on the feeler carrier forlongitudinal movement, a spring acting upon the feeler in a rearwardlyinclined direction back of the pivotal mounting of the feeler carrierwhen the feeler is in rearward feeling position and in front of thepivotal mounting of the feeler carrier when the feeler is movedfrontwardly on a detecting beat, and a stop for limiting the swingingmovement of the'pivotally mounted feeler carrier.

4. In a feeler mechanism for looms,.the

Y combination of a pivotally mounted feeler carrier, a feeler mounted onthe feeler carrier for longitudinal movement, a spring acting upon thefeeler in a rearwardly inclined direction back of the pivotal mountingof the feeler carrier when the feeler is in rearward feeling positionand in front of the pivotal mounting of the feeler carrier when thefeeler is moved frontwardly on a detecting beat, and a transmitterconnected to the feeler carrier.

5. In a feeler mechanism for looms, the combination of a feeler stand, afeeler carrier pivotally mounted on the feeler stand for swingingmovement, a feeler mounted on the feeler carrier and displacedfrontwardly relative thereto on detecting beats, a spring acting uponthe feeler in a rearwardly inclined direction back of the pivotalmounting of the feeler carrier when the feeler is in rearward feelingposition and in front of the pivotal mounting of the feeler carrier whenthe feeler is moved frontwardly on a detecting beat.

6. In a feeler mechanism for looms, the

combination of a feeler stand, a feeler carrier pivotally connected tothe feeler stand and provided with feeler hearings in front and in rearof its pivotal connection with the feeler stand, a feeler mounted formovement toward and from the front of the loom in said bearings, aspring connected to the feeler between said bearings and acting upon thefeeler in a rearwardly inclined direction back of the feeler carrierpivotal connection I when the feeler is in rearward feeling position andin a rearwardly inclined direction in front of the pivotal connectionwhen the feeler is moved frontwardly on a detecting 7 beat.

7. In a feeler mechanism for looms, the

the feeler in a rearwardly inclined direction back of the feeler carrierpivotal connection when the feeler is in rearward feeling position andin a rearwardly inclined direction in front of the pivotal connectionwhen the feeler in moved frontwardly on a detecting beat, and stops forlimiting the swinging movement of the feeler carrier.

8. In a feeler mechanism for looms, the combination of a pivotallymounted feeler carrier, a feeler mounted on the pivoted carrier formovement towards and from the front of the loom, a pull spring connectedto the feeler to move it to rearward feeling position and arranged topull laterally upon the feeler rearward of the feeler carrier pivotalmounting when the feeler is in rearward feeling position to swing thecarrier and feeler laterally to feeling position and frontward of thepivotal mounting of the feeler carrier when the feeler is movedfrontwardly on a detecting beat to impart a tendency for the feelercarrier to turn on its pivotal mounting and impart side slipping stressto the feeler.

In testimony whereof, I have signed my name to this specification.

JESSE W. SIMPSON.

combination of a feeler stand, a feeler car-- rier pivotally connectedto the feeler stand and provided withfeeler hearings in front and inrear of its pivotal connection with the feeler stand, a feeler mountedfor movement toward and from the front of the loom in said bearings, aspring connected to the feeler between said bearings and acting upon

